Paint-package and method of making it



G. W. STAHL.

PAINT PACKAGE AND METHOD 0F MAKING IT.

APPLICATION FILED NOV. 3, 1920.

Patented NOV. 29, 1921.

LBSMAS.

62607 e Zd ZZ unirte starts;

fdlht neri l edities y GEORGE W; STAHL, OF CHCI-LGO, LLNOS.

PAINT-PACKAGE AND METHOD OF MAKING T.

Specification of atent. y y Pgtfgn-Qd N0V 2919'21.

Application led November 3, 1920. Serial No. 421,481.

To all whom. t 'may coment.' i

Be it known that ll, tnonon W. b'rAnL,

a citizen of the United States, residing at Chicago, in the county of Cook and State ofv material, and which is produced and assembled by an improved method, thereby effecting a large saving in the cost of manufacture.

The value and nature of ceramicv paint require that it be marketed in sealedpackages. It is a trade custom to use for that purpose a small package comprising a palette or base of vitreous material carrying a quantity of the `paint spread upon a por tion of its surface. and covered by a domed sheet of Celluloid to protect the paint fromk moisture, dust and evaporation. To secure the cover to the base and provide for sealing the package it has been the common practice to employ a sheet metal tray as a receptacle for the base, and provided with a marginal rim which is clamped overthe edges of the cover. Another type involves the Ause of a centrally apertured sheet metalv plate arranged to overlie the cover and clamp it to the base by turning lugs formed on the edges of the plate under Athe base. lt has been found also that in that type of package wherein the vitreous base is vexposed the liability of breakage is great, andthe protection of a backing, usually of tin, is desirable.

The consumernsually cuts away the celluloid cover to expose the paint for use. The packages being used but once, and of proportionately high cost in relation to Lthe small amount of paint contained, the cost of their manufacture is an important consideration in the marketing of the paint. Sheet metal for the purpose is expensive andthe operations required to shape the metal parts and seal them after packing, add materially to the cost.

A particular object of my invention is to provide a construction permitting the use x portion of one side. V

much cheaper materials than heretofore used, and .thus save a substantial portion of the cost of the package. A, further objectis toprovide` a novel method of hermetically sealing such packages after ybeinglilled which further ma- .l

terially reduces, the cost of their manufacture.

These objects are attainedy byeliminating the sheet metal and `using cardboardor the like for the backing, andy accomplishing thereby the added advantage of a superior protection against chipping or breaking the base.

.By ymy method of assembling and sealing the parts, l avoid the ,shapingy and crimping operations upon the edgesof the cover and back, and seal the flat edges by applying a suitable impervious compound. n

@ther objects `and advantages Will be apparent asthe description proceeds.

l'n the accompanying drawings, Figure l' is. a plan vieur kof kmy improved package, with the sealing compound removed from a Fig. 2 isa transverse sectional view taken throughthe center of the package. Figs. to 6 are reduced sectional vieivs of the several parts representing `the successive operations `according to my improved method inthe manufacturing assembly of the parts of the package.

ln the embodiment illustrated, the invention comprises a palette or base l of glass or othervitreous material.k A quantity of paint'Q is deposited upon the central portion of the base. covering 8 preferably of` transparent Celluloid rests on the upper surface of the base and is shaped in general conformity to the dimensions of the base with its edges extending a substantial distance beyond the edges of the base. Centrallyv of the covering an upstanding convex portion et is formed over the deposit of paint and is of sufficient height to remain out of Contact with the paint. An annular channel `5 is formed in the fiange ofthe covering around the base ofthe convex portion to assure complete contact between the covering about the` convex portion and 'the' base, and to prevent `buckling of the jflat portion of the covering. Located beneath the'base is a back member 6 also conforming With the general dimensions of the base and board or other sheet material of a fibrous nature, and preferably is treated by a Water- Y proofing process. At suitable points about the periphery of the package, the coveringV and the back member are secured together outside of the edges of thebase. Such points.

. are preferably the central portion of oppo- "partially solidii'ied the Vedges may be submon paper binding staples 7 driven throughk the edges of the covering and back and clenched. Fastening the edges by this means draws them together outside of the base and Vholds the parts firmly in position. To seal vthe package substantially air-tight and to prevent moisture and dust from reaching the paint, Ifapply a layer'of sealing vvaX 8 or other suitable impervious material about the edges of the package thus securing the covering and back in hermetically sealed relation. In applying the sealing compound, the staplededges of the package preferably are dipped in liuid Wax; When the latter is jected to pressure in a suitable mold or press to bring the edges of the cover and back into continuousy contact and uniformly shape the coating ofA sealing compound thereon. To

' vobtain access tothe paintfor use, the celluloid covering maybe cut about the edges of the base plate and removed. If desired7 oneV be'left uncut te be used as a hinge edge may for turning back the covering.v

It Will be apparent that in my construc# tion I have provided an exceedingly simple package V`vvhich requires a small amount of labor andlslight skill to assemble. rEhe materials are inexpensive and make possible a Ysubstantial reduction in the cost of manufac-ture as compared'vvith the common types of package. By my simple method of Astapling the overlapping'edges of the cover and the back, and of sealing them, I avoid the necessity for any dieA Workin crimping Vor forming the engaging edges oii those parts.,l The back of cardboard or similar fibrous-material gives added protection to the usual'glass basein the package and prevents breakage in the handling of it as mer- Vsaid base, said rim extending a substantialV distance beyond the edges of said base,a

back member of fibrous material underlying said base and having its edges coextensive With the'edges of said cover, a plurality of vious sealing compound or Wax embracing the said edges of tlievcover and base.

2. fr paint package comprising a base, a`

Celluloid or like cover having a raised center aortion and a flat rim overl in(Y said base said rim extending beyond tie edges of said base for substantial mai-gin, ya back member underlying said base `and having flat edges coextensive with the edges of said cover, and a plurality of staples clamped through'the marginal edges of said cover and back to bind them together.

3. A paint package comprising a base, a celluloid or like cover having a raised center portion and a flat rim overlying said base, said rim extending beyond the edges of said base for a substantial margin, a. back member of librous material underlying Vsaid base and having llat edges co-citensive with the edges of said cover, he marginal edges of said cover and back being embraced Vor like cover, and a fibrous back, said cover and back being of greater dimensions than said base, Which comprises placing said 'cover and back-upon the upperand lower surfaces respectively of said base vvith their overlapping edges coincident, fastening said edges together ata plurality of points Without the periphery of said base, applying an impervious sealing compound in i'iuid condition continuously about the joined edges of said cover and back so that the compound Will externally embrace said edges, and pressing said edges into continuous contact about said base. f

5. The method of assembling a paint package having a vitreous base, a Celluloid or like cover, and alibrous back, said cover and back having fiat rims of greater dimensions than said base, which comprises placing said cover and back upon the upper and loiversurfaces respectively of said base and with their rims uniformly overexte'nding said base,-driving staples through the ac joining lrims of said cover Yand back at spacedV intervals, about said base, clenching the staples t ping said rims in fluid sealing compound, and applying pressure to said rims v'vhen said compound is Vpartially solidified to seal them in continuous and uniform contact.

*In testimony whereof, I have hereunto set my hand. Y'

vencinas iv. STAHL.

to-hold said rims in Contact, dip' 

